Question

1- Which of the following elements have the most negative electro
gain enthalpy?
1) [Ne] 3s^2 3p^2
2) [Ne] 3s^2 3p^4
3) [Ne] 3s^2 3p^5
Give reasons​

Answer 1

Answer:

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Answer 2

[Ne]3s

2

3p

5

.

It is because along the period ionization energy increases (as effective nuclear charge increases). The element (C) will have the highest electron gain enthalpy as it easily gains one more. electron to achieve a stable configuration of the nearest inert gas.